Which of the following is used to avoid the back EMF in the relay?(a) resistor(b) capacitor(c) inductor(d) diodeI had been asked this question in an interview.This intriguing question comes from Power Controls topic in chapter Interfacing to the Analog World of Embedded Systems

Which of the following is used to avoid the back EMF in the relay?(a)

1.	Which of the following is used to avoid the back EMF in the relay?(a) resistor(b) capacitor(c) inductor(d) diodeI had been asked this question in an interview.This intriguing question comes from Power Controls topic in chapter Interfacing to the Analog World of Embedded Systems
Answer» CORRECT choice is (d) diode To explain: In ORDER to get rid of the back EMF which is generated by the relay a diode is connected ACROSS the terminals which OPERATE in the reverse bias so that nothing can HARM the relay.

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Which of the following is used to avoid the back EMF in the relay?(a) resistor(b) capacitor(c) inductor(d) diodeI had been asked this question in an interview.This intriguing question comes from Power Controls topic in chapter Interfacing to the Analog World of Embedded Systems

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